Now on eBay:
Spanky new from Jim Flora Art LLC and Yee-Haw Industrial Letterpress, Knoxville: three different sets of four unique cards each. The cards are hand-printed letterpress on recycled paper and come bundled with kraft envelopes in a clear sleeve. Fun to mail, funner to receive, but also klassy-kool for framing.
Above: quartet of 1955 hepcats from the "Plant You Now, Dig You Later" set. Below, the "Deluxe-O-Tone" line of retro-record players (1940s- and 1950s-era):
Here's the "Stardust" series (1954 illustrations):